=LDR 22 4500 =001 6242 =082 04$a910.04 CHA =100 1\$aChorley, Richard J. =245 10$aSocio-economic Models in Geography =260 \\$aLondon :$bUniversity paperbacks ,$c1969 =650 \0$aBooks =852 \\$bGeography Basement$h910.04 CHA